How To Fix WY136 - FM &1; parameter transfer incorrect (missing parameters)

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 136

• Message text: FM &1; parameter transfer incorrect (missing parameters)

What causes this issue?

You want to call function module &V1&. However, input parameters which
the system needs to execute the function module are missing.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Please check function module call.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY136 - FM &1; parameter transfer incorrect (missing parameters) ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WY136 FM &1; parameter transfer incorrect (missing parameters)
  
  Cause:
  This error occurs when a function module (FM) is called with an incorrect or incomplete set of parameters. Specifically, the function module expects certain parameters to be passed during the call, but some required parameters are missing or not properly transferred.
  In SAP, function modules have defined importing, exporting, changing, and tables parameters. If the calling program or another FM does not supply all mandatory parameters, or if the parameter structure is incorrect, the system raises this error.
  
  Typical Scenarios:
  
  Calling a standard or custom FM without all required parameters.
  Incorrect parameter names or types used in the call.
  Parameter structure mismatch due to changes in FM interface.
  Missing parameters in dynamic FM calls (e.g., CALL FUNCTION with dynamic names).
  Issues in wrapper or proxy programs that call the FM.
  
  
  Solution:
  
  
  Check the FM Interface:
  
  Go to transaction SE37.
  Enter the function module name (the one indicated by &1 in the error message).
  Review the Importing, Exporting, Changing, and Tables parameters.
  Identify which parameters are mandatory.
  
  
  
  Review the Calling Code:
  
  Find the code that calls the FM.
  Ensure all mandatory parameters are passed.
  Verify parameter names and data types match the FM interface.
  
  
  
  Correct the Call:
  
  Add missing parameters.
  Correct parameter names or structures.
  If using dynamic calls, ensure the parameter list is complete and correct.
  
  
  
  Test the FM Call:
  
  After correction, test the FM call in the program.
  Use debugging if necessary to verify parameter values.
  
  
  
  Check for Interface Changes:
  
  If the FM interface was recently changed (e.g., after a support package or customization), update the calling programs accordingly.
  
  
  
  
  Additional Information:
  
  The placeholder &1 in the message will be replaced by the actual function module name at runtime.
  This error is a runtime error and usually appears in the short dump or as a message in the application log.
  If the FM is a standard SAP FM, check OSS notes or SAP support for any known issues.
  For custom FMs, ensure proper documentation and interface stability.
  
  
  Example:
  If the error message is:
  
  WY136 FM Z_MY_FUNCTION parameter transfer incorrect (missing parameters)
  
  Check FM Z_MY_FUNCTION in SE37.
  Suppose it requires parameters IV_DATE and IV_USER.
  The calling program only passes IV_DATE.
  Add IV_USER in the call to fix the error.
  
  
  If you provide the exact FM name or the calling code snippet, I can help you pinpoint the missing parameters more precisely.